Home / 8,742.93-13,103.44-6,886.70

Finding the Fourth Proportional to 8,742.93, 13,103.44 and 6,886.70

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Solution

The fourth proportional to 8,742.93, 13,103.44 and 6,886.70 is: 10,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.93 : 13,103.44 = 6,886.70 : x
  2. Step 2: Convert to fraction form
    8,742.93/13,103.44 = 6,886.70/x
  3. Step 3: Cross multiply
    8,742.93x = 13,103.44 × 6,886.70
  4. Step 4: Simplify right side
    8,742.93x = 90,239,475.79
  5. Step 5: Solve for x
    x = 90,239,475.79/8,742.93
  6. Step 6: Final answer
    x = 10,321.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.